Do monitor arms work with small monitors (under 21 inches)?

Yes — monitor arms work with monitors from about 13 inches up to 34–40+ inches, depending on the arm's weight capacity and VESA compatibility. Small monitors (13–21 inches) are typically very light (3–8 lbs), so ensure the arm's minimum weight rating can handle such a light load — gas-spring arms calibrated for heavy monitors may push a light monitor up constantly. Look for an arm with an adjustable tension range that includes very low weights, or choose a mechanical tension arm that can be tuned down. 75x75mm VESA is common on monitors under 24 inches; confirm your monitor's VESA spec before ordering the arm. FindOfficeFurniture.com — 888-719-4960.